H2020Индивидуална стипендия2015–2017

CRYPTRANS · Characterization of newly discovered but poorly understood fungal-driven trophic processes in freshwater lake ecosystems by metatranscriptomic

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2015-07-01 → 2017-06-30
Финансиране от ЕС: 185 857 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Водните гъби в сладководни езера, като тези от групите Chytridiomycota и Cryptomycota, се анализират чрез ДНК секвениране. Те помагат за разбирането на произхода на сухоземните гъби и начина, по който разграждат растителната материя и влияят върху баланса на кислорода и въглеродния диоксид.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Characterization of newly discovered but poorly understood fungal-driven trophic processes in freshwater lake ecosystems by metatranscriptomic

Fungi are the primary degraders of plant matter and are globally important for the oxygen/carbon dioxide balance, among many other things. The origin of fungi is clearly aquatic, since we find most of the early diverging fungal lineages in freshwater and marine ecosystems, where they show specific adaptations such as motile spores. Thus, these aquatic fungal lineages can shed light on the origin of the terrestrial fungi and the unique enzymes that allow them to degrade plant polymers efficiently. Despite this knowledge, early diverging waterborne fungi are rarely investigated due to their microscopic size, their indistinguishable features, and the difficulty associated with keeping them in culture in the laboratory. Our aim with this project was to shed light on the very poorly understood aquatic fungi (notably the phyla Chytridiomycota and Cryptomycota), many lineages of which are new or even unknown to science. We investigated these new fungi and detailed their taxonomy, functional processes, and ecological services in a range of freshwater systems. The overarching questions were: (1) What fungi are there in these systems? (2) What are their functions and roles? (3) What are the implications for the study of fungi, freshwater ecosystems, and ecology at large? This EU project started in the beginning of July 2015 by an extensive sampling campaign of approximately 150 – mainly Swedish – lakes spanning the substantial national latitudinal gradient. We used state of the art DNA sequence analysis methods to establish what types of fungi were present in these freshwater systems. We found that several early diverging fungal lineages dominated the lake ecosystems, and it gradually became clear that approximately 25% of these fungal species were new, undescribed species that awaited formal description and scientific recognition. This opens up new perspectives for biodiversity research by showing that many important ecological processes are driven by organisms we know next to nothing about,

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Recent research has shown that freshwater systems, and particularly their deepest parts, abound with fungi. These fungi (predominantly in the poorly understood phyla Chytridiomycota and Cryptomycota) are largely new to science and are thought to be involved in ecological processes that convert organic matter into nutrients readily accessible to organisms at higher trophic levels. Given the ever-increasing anthropogenic pressure on freshwater systems, we need to understand these processes and the organisms involved in substantial detail. The present project will characterize these new fungi and detail the processes and ecological services they drive through next-generation sequencing of DNA (metagenomics) and RNA (metatranscriptomics) pools in freshwater depth gradients. The overarching questions are: (1) What fungi are down there? (2) What are their functions and roles? and (3) What are the implications for the study of fungi, freshwater ecosystems, and ecology at large? This combination of taxonomy/systematics and ecological/functional research questions applied to these most unexplored and remote ecological settings represents a novel approach on freshwater systems and biological diversity - one with the potential to redefine the pursuit of biological research questions across biological disciplines and beyond habitats normally targeted. The applicant has developed a new high-tech sampling device capable of stable RNA/DNA capture down to 100 m depth, and he brings substantial expertise on functional and ecological assessment of metagenomics sequence datasets to the project. The host research group is the world authority on molecular identification of fungi and comparison of fungal communities across sites and locations. Jointly this team is in a position to push the boundaries of biological knowledge, with the ultimate intent to allow the applicant to establish a progressive, vibrant research group at the very forefront of freshwater systems research in Europe.

Оригинален текст от CORDIS (на английски).

Участници

GOETEBORGS UNIVERSITET · GoeteborgКоординаторШвеция